I ordered 2 of these on 06/24/2014, and I received them today 06/27/2014. Talk about quick to ship and quick to receive, "That Pet Place" has never let me down - never. And I have been a faithful customer since 1992, either by mail order or in person. Sorry I got side tracked - This item is a direct replacement for the Tetra Whisper 60 Power Filter, and it works better then the one that came with my power filter(My filter is quiet again). Thanks for letting me post.....